Vibraplane vs. Minus k for Turntables

I had never heard of Minus K, until this thread. So thanks for putting it up. I just went to the Minus K website to check out their prices and specs. Seems like the BM8, which costs less than $3K, would be a good choice for most tt's, which tend to weigh less than the 105-lb upper limit of this model. Plus, the level of isolation is only a hair's breath less good (f=1.5Hz vs 0.5Hz) than their top model. Has anyone tried the BM8? Thanks.

Whoops! I see above that sdlevine is an owner of a BM8 and likes it. Moreover, I erred in reporting the performance of the BM8, which is f = 0.5Hz in the vertical plane, as sdlevine says. I will have to struggle with my conscience over purchasing one of these, maybe sell an extra turntable to pay for it.